Frequently Asked Questions

We may not be the first of this type of product, but if you're looking for something convenient, affordable, and high quality, the following are areas where Jack shines above all competitors:

1. Share feature
2. Sound quality
3. Battery life
4. Ease of use

Jack is the only adapter which enables you to sync headphones and wirelessly share audio with a friend.

And quite simply, ours has superior audio quality. We use a CSR8670 chip with aptX protocol used in top wireless products like Sennheiser, B&O Play, Bowers & Wilkins, etc. Our Maxim amplifier is used in professional sound equipment and drives great power to headphones and speakers.

Our battery is much bigger than competitors on Amazon (which are typically <180mAh). They make vague battery life claims but we directly and proudly state our battery size of 300mAh.

Our Bluetooth connectivity is the best. It's the only one that will store multiple devices to auto-pair so you can go from phone to laptop easily. You can also connect to both simultaneously and switch between which one you are listening to.

Ours fully supports in-line microphones and volume controls no matter the brand, works while charging, and has the sleekest form factor with steel clip.

You'd figure our competitors would do these things, but nearly none do. It takes a lot of custom firmware and Bluetooth work to get all the details right, and fortunately that's an expertise we've been building for 3 years since our first product. We are very confident in the quality and usability of Jack.

Technical answer: Jack will output with a 44.1kHz sample rate, or whatever the source happens to transmit at (almost always 44.1kHz with the Bluetooth A2DP profile). The codec will adjust digital compression rates depending on signal quality. Our amp can drive 2Vrms into 600ohm loads.

We're using the top aptX audio codec, CSR8670 Bluetooth chip, and MAX97220 headphone amplifier in Jack to bring you really great sound. We're so confident, we tell you the exact names of these components so you can compare them to any competitor.

For cars that do not support Bluetooth music streaming, you can connect Jack to the aux input in your car and leave it charging via USB connection. Then, you can wirelessly send music from your phone to the Jack, and the songs will play through your car speakers. You can even let your passengers DJ! (not that you’d let them)

You can also take calls and hear the caller through your speakers. However, Jack does not have a built-in microphone, so you will have to use speakerphone to talk.

Jack is not waterproof; it has an open USB port and aux connector. Light moisture will not destroy the device but exposing it to rain is not recommended.

We are offering a weather proof sport case as an add-on that would be perfect for sports and outdoor activities. It is not submergible underwater though. Currently it will be unlocked at our $800,000 stretch goal target.

Check out the demonstration video on our page! For normal viewing there is no significant lag and you can watch your shows and movies comfortably. Our aptX codec will help us achieve lower latencies, at a target of <100ms. For video editing or other professional use cases, this may not be viable.

No. We sourced for you through our audio manufacturer a premium quality headphone at a bargain price. This is due to no branding and no retailer to mark up the price. Ours will come with customizations not found anywhere else, such as a built in microphone and universal button controls (for any OS) and a shorter cord perfect for using with Jack.

We are hiring a service called BackerKit to make backer accounts for you, and we had great success with them in the past. For example if you add $25 to your pledge amount, they will survey you later to see if you want another Jack or you want headphones and a case.

It will allow you to manage your pledge amounts and choose which items and colors you want.

Yes, please choose the appropriate shipping country when backing and shipping charges will automatically be updated.

We do not cover VAT (value added tax) if any, and do not give official advice on customs regulations as we are not shipping professionals. Please consult your local customs office with questions or concerns. We will supply all the necessary paperwork to declare the items and their value when shipping but it is up to you to handle any duties and receive the package.

Yes! For example, if you're streaming music from your phone to Jack, you can also connect Jack to your laptop simultaneously. Then, you can stop the music from your Jack and play from your computer instead.

Last updated: Thu, Feb 23 2017 5:03 am EST

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